OnePlus 6 256GB - Black - Unlocked

Customer reviews for OnePlus 6

Overall rating

468 verified reviews

Rating details

Accessories
4/5
Appearance
4.3/5
Battery
4/5
Lens & Camera
4.5/5
Overall performance
4.3/5
Packaging
4.5/5
Shipping
4.5/5

Reviews

Pavol S.
Verified purchase
Reviewed 08/03/2026, Slovakia.
I bought OnePlus6 in "very good" condition. The reality is that the phone looks brand new. The battery is also in excellent condition. Eco-friendly packaging + usb cable and sim card removal spender. Delivery very fast, ordered on Friday, delivered on Monday. For me great satisfaction. Thank you
Translated from Slovak
OnePlus 6 128GB - Čierna - Neblokovaný
OnePlus 6 128GB - Čierna - Neblokovaný
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
26/02/2026
Pol H.
Verified purchase
Reviewed 20/10/2025, France.
I like it, but the battery doesn't hold its charge. This is a real shame as I like the size, the way it works etc. I bought it to replace my old phone which is starting to have a weak battery, but unfortunately it lasts longer than my new OnePlus 6. I will have to return it to you.
Translated from French
OnePlus 6 128 Go - Noir - Débloqué
OnePlus 6 128 Go - Noir - Débloqué
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
01/10/2025
Chris B.
Verified purchase
Reviewed 22/12/2025, United Kingdom.
The website was easy to use, my phone came very quickly, well packaged and I'm delighted with the whole experience and would recommend to anyone wanting a replacement phone at a fair and reasonable price.
OnePlus 6 256GB - Black - Unlocked
OnePlus 6 256GB - Black - Unlocked
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
12/12/2025
Pavel M.
Verified purchase
Reviewed 28/09/2025, Greece.
Everything is nice! The condition is not just "very good", it's extremely excellent! It was almost impossible to find traces of usage! The only problem is a weak battery, but I understand that it could not be a new one for such an incredibly low price.
Translated from Greek
OnePlus 6 128GB - Μαύρο - Ξεκλείδωτο
OnePlus 6 128GB - Μαύρο - Ξεκλείδωτο
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
19/09/2025
Alice F.
Verified purchase
Reviewed 17/08/2023, France.
This is the 3rd product I've bought from Backmarket and I'm very satisfied with their responsiveness, the quality of the refurbished product and the support they provide.
Translated from French
OnePlus 6 64 Go - Noir - Débloqué
OnePlus 6 64 Go - Noir - Débloqué
Condition
Fair
Signs of wear. The body may have a few visible scratches and dents. Items with screens may have light scratches.
Purchased
03/08/2023
Dean S.
Verified purchase
Reviewed 17/05/2026, United Kingdom.
Amazing 10/10 like a brand new phone at 90% the price
OnePlus 6 128GB - Black - Unlocked
OnePlus 6 128GB - Black - Unlocked
Condition
Fair
Signs of wear. The body may have a few visible scratches and dents. Items with screens may have light scratches.
Purchased
01/05/2026
Damion B.
Verified purchase
Reviewed 26/04/2026, United Kingdom.
no problems and delivered with care
OnePlus 6 64GB - Black - Unlocked
OnePlus 6 64GB - Black - Unlocked
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
17/04/2026

Everything you ever wanted to know about the OnePlus 6

Durability
Overall performance
Camera
Screen quality

Optic AMOLEDScreen type
8 GBMemory (GB)
NoFoldable
Midnight BlackColor (official name)
256 GBStorage
4GNetwork
NoSD Card Slot
NoCompatible with latest Update
Dual Physical SIMSIM card

The OnePlus 6 is a solid smartphone that combines sleek design with powerful performance. Released in May 2018, it remains a reliable option for users looking for a capable device without the latest features.

Key features:

Release Date: May 2018
Display: 6.28-inch AMOLED, FHD+ resolution
Processor: Snapdragon 845
Camera: Dual 16MP + 20MP rear cameras with optical image stabilization
Connectivity: 4G LTE compatible for fast internet access.

Who is this for?

The OnePlus 6 is ideal for users who want a well-rounded smartphone for everyday use, including browsing, social media, and photography. It’s suitable for students or professionals who need a reliable device without the need for cutting-edge features.

Pros & Cons: Pros Cons Fast performance with Snapdragon 845. Older model may lack some modern features. Vibrant AMOLED display enhances viewing experience. No official IP rating for water resistance.
Why refurbished?

Choosing a refurbished OnePlus 6 allows you to enjoy robust performance while being eco-conscious. Back Market ensures that each device is thoroughly tested and restored to a high standard. Learn more about our quality standards.

Screen type: Optic AMOLED
Memory (GB): 8 GB
Foldable: No
Color (official name): Midnight Black
Storage: 256 GB
Network: 4G
SD Card Slot: No
Compatible with latest Update: No
SIM card: Dual Physical SIM
OS: Android
Serie: OnePlus 6
Weight: 177 g
Screen size (in): 6.28
Model: OnePlus 6
Manufacturer Ref: A6000
SAR head: 1.33
Brand: OnePlus
Resolution: 1080 x 2280
Front camera: 16 megapixels
Year of Release: 2018
Main camera: 16 megapixels
Carrier compatibility: Unlocked
Colour: Black

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OnePlus 6 256GB - Black - Unlocked

Customer reviews for OnePlus 6

Overall rating

Rating details

Reviews

Reviews

Pavol S.

Pol H.

Chris B.

Pavel M.

Alice F.

Dean S.

Damion B.

Everything you ever wanted to know about the OnePlus 6

Durability

Overall performance

Camera

Screen quality

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